The Renaissance palazzo that hosted Leonardo da Vinci while he painted “The Last Supper” (across the street) was renovated by Portaluppi in 1922 and then again in 1943 for the new owners, who happened to be his parents-in-law.

HoursEveryday: 9 AM to 6 PM. Ticketed guided tours only.

Nearby: the original Pasticceria Marchesi, on the corner of Corso Magenta and via Santa Maria alla Porta

3. Casa Museo Boschi Di StefanoVia Giorgio Jan, 15 (MM1 Lima/Centrale

A grand dwelling in a 1930s Portaluppi-designed apartment building that also houses the modern Italian art collection of Antonio Boschi and Marieda Di Stefano.